Used in peptide synthesis as a chiral building block for developing pharmaceuticals, particularly in creating enzyme inhibitors or bioactive peptides with enhanced metabolic stability. The FMOC group enables solid-phase peptide synthesis by providing orthogonal protection for the amine functionality. The alpha-methyl substitution restricts conformational flexibility, helping to stabilize specific peptide secondary structures like turns or helices. The fluorophenyl group improves lipophilicity and can enhance binding selectivity in receptor-targeted compounds. Commonly applied in medicinal chemistry for drug discovery, especially in CNS-targeted agents and protease-resistant peptide analogs.